This is my office, where we have lots of meetings about everything from ideas to marketing. I'm ashamed to say they're a bit of a laugh most of the time. People often sit on the floor, and the other day someone was in a fur coat and a scarf because the heating was broken. We have breakfast together on people's birthdays, too – pain au chocolat, mini-cupcakes, sometimes booze, sometimes not. Still, I was thinking that if we all die tomorrow, what do you look back on? Not how much money you made, but how much fun you had.

This building was originally the stable for an old brewery, and all the horses were downstairs. Now there's the design team, sales, accounts… everyone all in one room. I chose this place because I was looking for something with character – I am very affected by architecture and would find it difficult to be inspired by low ceilings and fluorescent lights. I also wanted a big enough space to have everyone sit together, as it saves so much pain on communication; you know if someone's upset and, equally, if someone's happy.

We've rented this office for the past six years – when we first moved in it was all nasty blue carpets, so we replaced them and just whitewashed the walls and put in quite simple desking, because when you are a self-financing business you don't go all swanky, you go Ikea. The most famous bag we've created in this room is the £5 eco-carrier that we sold in Sainbury's two years ago called "I'm Not a Plastic Bag". We spent two years planning it and tried to create as much hysteria as possible to get the message across about how much damage plastic bags do to the environment. Now their usage is down from something like 13.9bn a year to 9.9bn. Obviously that's not just down to us, but we are glad to be part of something we believe in.★

Anya Hindmarch Bespoke, 15–17 Pont Street, London SW1 (020 7838 9177)

In the picture

PORTRAIT I'm really proud to be British and I think the Queen is the most amazing woman – she has that real British grit. This was commissioned as a portrait for the island of Jersey and Chris Levine, the photographer, asked her to rest between shots. It's lenticular, which means they take lots of different images and lay them on top of each other so that you get the illusion of depth. I used to have it at home but my kids were creeped out by it because they thought she was going to suddenly open her eyes

JAR I always have sweets in my office in case anyone needs a pick-me-up. My creative director changes them with the colours of the season – he's neurotic like that – but the blue ones are never quite so nice

CHAIR I love the idea of taking something very classic but adding a twist, like this Bentwood chair by Thonet. Wood is a fascinating material – it's very malleable

FRAMED ECO-BAG I have lots of copies of "I'm Not a Plastic Bag", all framed. Every time I see a copy I buy one; they make me laugh. This one says "I'm not a Smug Twat". I'm not precious about people copying it, because the whole point of the project was to get the message as far and wide as we could

MBE This is dated 1 January 2009. When I received the letter about it, it looked a bit like a VAT return, so I initially handed it to my accountant. When you go to the palace, the ceremony is done with great grace – it's run like the British Army. Everybody is very charming

ORGANISER I sell these in my new bespoke store. It's a book of lists which you can personalise. I have always personalised things. I think I got that from my mother. She is an amazing present giver and she always did a treasure hunt in the form of a poem for our birthdays

PHOTOGRAPHS This is Felix, when he was about five or six, posing for our nanny. He is nine now, and he and my six-year-old son are my birth children. I've had my inherited children, two more boys, who are 17 and 20, and a daughter, 19, since their mother died when they were little, so I consider them to be very much mine, too. They're very interested in the business, and will help out if there is a crisis

TEAPOT COSY I love tea – I drink three or four cups a day. We have lots of celebrities coming in here to borrow bags, and often give them a cup, too. We didn't ever set out to court them. In the early days Princess Diana used to come to the shop in Walton Street, and then Elle Macpherson and all the "supers" started coming, too. It all happened fairly organically

LAMP I'm a trustee at the Royal Academy and have co-chaired the Summer Exhibition preview party for the past five years. One time we had a bar with huge big lamps and I bought some of them afterwards. It makes me feel a bit like I'm Alice in Wonderland. And having something so large makes me feel slim and small, just like a big handbag always makes your body feel small